Least Common Multiple (LCM) of 70 and 168
The least common multiple (LCM) of 70 and 168 is 840.
What is the Least Common Multiple (LCM)?
The LCM of two integers is the smallest positive integer that is divisible by both numbers. It is often used to find common denominators and solve problems involving periodic events.
Formula for LCM
The LCM of two numbers can be calculated using their GCD:
LCM(a, b) = |a × b| ÷ GCD(a, b)
How to Calculate the LCM of 70 and 168?
First, calculate the GCD of 70 and 168 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 70 ÷ 168 = 0 remainder 70 |
| 2 | 168 ÷ 70 = 2 remainder 28 |
| 3 | 70 ÷ 28 = 2 remainder 14 |
| 4 | 28 ÷ 14 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 182 and 113 | 20566 |
| 126 and 166 | 10458 |
| 129 and 124 | 15996 |
| 167 and 32 | 5344 |
| 78 and 74 | 2886 |